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The BMW Range
3 Series
E46
e46 rear muffler
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<blockquote data-quote="supergripen" data-source="post: 73129" data-attributes="member: 1254"><p><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> i have read somewhere that the valve actually has several functions.one is to optimize the operations of the catalyctic convertor(heats it up quicker on startup),it also reduces noise from the exhaust though on my car it creates this tinny noise that spoils an otherwise nice note from the standard exhaust.lastly it is said to optimize torque at low to mid rpms..</p><p>well i'm changing my backbox soon..wonder how it will affect the exhaust system? :dunno:</p></blockquote><p></p>
[QUOTE="supergripen, post: 73129, member: 1254"] :D i have read somewhere that the valve actually has several functions.one is to optimize the operations of the catalyctic convertor(heats it up quicker on startup),it also reduces noise from the exhaust though on my car it creates this tinny noise that spoils an otherwise nice note from the standard exhaust.lastly it is said to optimize torque at low to mid rpms.. well i'm changing my backbox soon..wonder how it will affect the exhaust system? :dunno: [/QUOTE]
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